Tell her that your experience with Mike has made you overly cautious, but you really want her to go see a neph to make sure she is okay. Ask her to do it as a favor to you, because you will not be able to stop worrying about her otherwise. The docs may not be taking it seriously because they don't see any problem with her current bloodwork, but if she does have cysts, she should know now, not when it becomes a serious problem.
I guess the best reason to know at some point is to be able to let your children know that they each havea 50% chance of getting PKD as well. But beyond that, does this woman need to be alarmed? I'm not sure.
I mention all of this, because I wonder if there isn't a reason to worry if the blood pressure is normal? What is the benefit of knowing, if there areno symptoms?
...What is the benefit of knowing...